“…A wealth of research recommends using an assessment tool, such as the Subgroups for targeted treatment (STarT) Back, to stratify patients into subgroups; this supports the delivery of specific, targeted treatments and the identification of patients likely to benefit from CPPP (Hansen, Daykin, & Lamb, 2010;Hartvigsen et al, 2018;Hill et al, 2011;National Institute for Health and Clinical Excellence, 2016;Sowden et al, 2011;Whitehurst et al, 2015;Wilson et al, 2017). Alexanders and Douglas (2016) and Richmond et al (2018) highlighted that there have been challenges in the uptake, implementation and delivery of psychological approaches within musculoskeletal physiotherapy practice. There is a lack of clarity as to the reasons behind this, although training, competence, workplace culture and the beliefs of the physiotherapist have been suggested (Alexanders & Douglas, 2016;Houben, Gijsen, Peterson, De Jong, & Vlaeyen, 2005;Richmond et al, 2018;Sowden et al, 2011).…”